库鲁斯台水库坝址方案比选

Comparison and selection of Dam Site Scheme for Kurustai Reservoir

通过从地形、地质条件、工程总体布置、施工条件、工程量及投资等方面对上、下坝址进行技术经济比较。施工条件和附属工程方面下坝址优于上坝址。上坝址库盆条件、工程布置、建筑物工程量和工程投资方面优于下坝址。另外下坝址位置相对较低,通过输水总干管实现改善灌区高效节水自压灌溉较上坝址少346.67 hm^(2),灌溉效益相对较差。因此经综合比较,本阶段选定上坝址为推荐坝址。

A technical and economic comparison is made between the upper and lower dam sites in terms of topographical,geological conditions,the overall engineering layout,construction conditions,engineering quantity,investment and other aspects.The lower dam site is superior to the upper dam site in terms of construction conditions and auxiliary works.The upper dam site is superior to the lower dam site in terms of reservoir basin conditions,engineering layout,construction quantity and engineering investment.In addition,due to the relatively low location of the lower dam site,and the self-pressure irrigation is 346.67 less than that of the upper dam site,which irrigation benefit is relatively poor.Therefore,the upper dam site is selected as the recommended dam site at this stage after comprehensive comparison.